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Vassilopoulou E, Agostoni C, Feketea G, Alberti I, Gianni ML, Milani GP. The Role of Breastfeeding in Acute Respiratory Infections in Infancy. Pediatr Infect Dis J 2024:00006454-990000000-00942. [PMID: 38986006 DOI: 10.1097/inf.0000000000004454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
BACKGROUND Acute respiratory infections (ARIs) affect the respiratory tract, are often caused by viruses such as respiratory syncytial virus and rhinovirus, and present symptoms such as coughing, fever, respiratory distress and breathing difficulty. The global adherence to exclusive breastfeeding (BF) for the first 6 months of life has reached 44%, supported by World Health Organization and United Nations International Children's Emergency Fund efforts. BF provides vital nutrients and contributes to infant immune system development, protecting against infections. The role of BF in preventing and reducing complications of ARIs in infants is gaining attention, prompting a review of current data and future research needs. This review aims to summarize the evidence on the role of BF in reducing the risk and severity of ARIs in infants, elucidate the adaptations in breast milk composition during infections and identify relevant research needs. METHODS AND RESULTS Human milk (HM) is rich in immunoglobulins, antimicrobial peptides, and immunomodulatory factors that protect against various pathogens, including respiratory viruses. Several studies have demonstrated that BF is associated with a significant reduction in hospitalization, oxygen requirements, and mortality in infants with ARIs. The effectiveness of BF varies according to the specific respiratory virus, and a longer duration of exclusive BF appears to enhance its protective effect. It is documented that the composition of HM adjusts dynamically in response to infections, fortifying the infant's immune defenses. Specific immunological components of HM, including leukocytes and immunoglobulins, increase in response to infection in the infant, contributing to the enhancement of the immune defense in infants. Immune-boosting microRNAs enhance immune transfer to the infants and promote early gut maturation, and the HM microbiome along with other factors modifies the the infant's gut microbiome and immune system. CONCLUSIONS BF defends infants from respiratory infections, and the investigation of the microRNAs in HM offers new insights into its antiviral properties. The promotion of BF, especially in vulnerable communities, is of paramount importance in alleviating the global burden of ARIs in infancy.
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Affiliation(s)
- Emilia Vassilopoulou
- From the Pediatric Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Nutritional Sciences and Dietetics, International Hellenic University, Thessaloniki, Greece
| | - Carlo Agostoni
- From the Pediatric Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Gavriela Feketea
- Department of Pharmacology, Toxicology and Clinical Pharmacology, University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Pediatric Allergy Outpatient Clinic, Department of Pediatrics, "Karamandaneio" Children's Hospital of Patra, Patras, Greece
| | - Ilaria Alberti
- From the Pediatric Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Maria Lorella Gianni
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Gregorio Paolo Milani
- From the Pediatric Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
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Foerster C, Monsalve L, Ríos-Gajardo G. Infant exposure to ochratoxin A, zearalenone, and deoxynivalenol from the consumption of milk formula and baby cereal in Chile. Food Res Int 2024; 187:114389. [PMID: 38763651 DOI: 10.1016/j.foodres.2024.114389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 04/02/2024] [Accepted: 04/20/2024] [Indexed: 05/21/2024]
Abstract
Ochratoxin A (OTA), zearalenone (ZEN), and deoxynivalenol (DON) are mycotoxins whose exposure is associated with various adverse health effects, including cancer and renal disorders, estrogenic effects, and immunosuppressive and gastrointestinal disorders, respectively. Infants (<2 years) are the most vulnerable group to mycotoxins, representing a unique combination of restricted food consumption types, low body weight, lower ability to eliminate toxins, and more future years to accumulate toxins. This study aimed to estimate the infant́s exposure to OTA, DON, and ZEN due to the consumption of milk formula and baby cereals in Chile. Milk formula samples (n = 41) and baby cereals (n = 30) were collected and analyzed using commercial ELISA kits for OTA, DON, and ZEA determination. Exposure was assessed by the Estimated Daily Intake (EDI) approach (mean and worst-case scenario, WCS) with the levels found in a modified Lower Bound (mLB) and Upper Bound (UB); ideal consumption (<6m, 7-12 m, and 13-24 m); adjusted by the weight of each group. The risk was estimated by comparing the EDI with a reference tolerable daily intake or by the margin of exposure (MOE) in the case of OTA. DON and OTA occurrence in infant formula were 34 % and 41 %, respectively. The co-occurrence between these mycotoxins was 22 %. Mycotoxin contents were below LOQ values except for OTA determined in one sample (0.29 ng/ml). No milk formulae were contaminated with ZEN. In the case of baby cereals, the occurrences were 17 % for OTA, 30 % for DON, and 7 % for ZEN, all below LOQ. Co-occurrence was seen in two samples between ZEN and OTA. According to exposure calculations, the MOE for OTA was less than 10,000 in all models for milk formula between 0 to 12 months of age and in the UB and WCS for cereal consumption. Health concerns were observed for DON in the WCS and UB for milk consumption in all ages and only in the UB WCS for cereal consumption. Considering the high consumption of milk formula in these age groups, regulation of OTA and other co-occurring mycotoxins in infant milk and food is strongly suggested.
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Affiliation(s)
- Claudia Foerster
- Instituto de Ciencias Agroalimentarias, Animales y Ambientales (ICA3), Universidad de O'Higgins, San Fernando, Chile.
| | - Liliam Monsalve
- Instituto de Ciencias Agroalimentarias, Animales y Ambientales (ICA3), Universidad de O'Higgins, San Fernando, Chile
| | - Gisela Ríos-Gajardo
- Department of Food Science and Technology, Faculty of Pharmacy, University of Concepción, Concepción, Chile
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3
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Goutelle A, Viseur J, Boudjeltia KZ, Nuyens V, Cavatorta E, Van Antwerpen P, Maréchal Y. Mass spectrometry analysis of environmental pollutants in breast and artificial milk for newborns. Heliyon 2024; 10:e32350. [PMID: 38947466 PMCID: PMC11214495 DOI: 10.1016/j.heliyon.2024.e32350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 07/02/2024] Open
Abstract
Environmental toxins, particularly liposoluble compounds that accumulate in adipose tissues, present a risk for newborns, not only through breastfeeding but also through artificial milks. These compounds pass into breast milk, potentially exposing infants to harmful substances. In a monocentric observational study carried out in the Charleroi region, we employed liquid chromatography coupled with mass spectrometry to analyze the presence of environmental toxins in milk for newborns. Out of 39 breast milk and 12 artificial milk samples analyzed, 15 and six contained at least one pesticide, respectively, with nine different pesticides identified from a panel of 54 substances tested. The study found an association between the consumption of fresh produce and a higher presence of pesticides in breast milk. This. highlights the broader issue of environmental toxin exposure for infants, regardless of the feeding method. The results underline the need for a comprehensive approach when considering the establishment of breast milk banks and the safety of artificial milk, especially in the context of potential risks to premature newborns. Our findings not only validate the analysis technique for detecting toxins in breast milk but also suggest the necessity for a larger prospective study to explore these risks in the future.
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Affiliation(s)
- Alicia Goutelle
- Neonatal Intensive Care Unit, Marie Curie Hospital, CHU Charleroi-Chimay, Belgium
| | - Julian Viseur
- Laboratory of Biotechnology and Applied Biology, Haute Ecole Provinciale du Hainaut, Condorcet, Ath, Belgium
- RD3 – Pharmacognosy, Bioanalysis and Drug discovery & Analytical platform of the Faculty of Pharmacy, ULB, Brussels, Belgium
| | - Karim Zouaoui Boudjeltia
- Laboratory of Experimental Medicine (ULB 222), CHU Charleroi-Chimay, Faculty of Medicine, ULB, Belgium
| | - Vincent Nuyens
- Laboratory of Experimental Medicine (ULB 222), CHU Charleroi-Chimay, Faculty of Medicine, ULB, Belgium
| | - Eric Cavatorta
- Neonatal Intensive Care Unit, Marie Curie Hospital, CHU Charleroi-Chimay, Belgium
| | - Pierre Van Antwerpen
- RD3 – Pharmacognosy, Bioanalysis and Drug discovery & Analytical platform of the Faculty of Pharmacy, ULB, Brussels, Belgium
| | - Yoann Maréchal
- Neonatal Intensive Care Unit, Marie Curie Hospital, CHU Charleroi-Chimay, Belgium
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Linares AM, Thaxton-Wiggins A, Unrine JM. Concentrations of Lead and Arsenic in Mother's Milk and Children's Blood in Peruvian Breastfeeding Dyads. J Hum Lact 2024; 40:69-79. [PMID: 38084709 PMCID: PMC10984648 DOI: 10.1177/08903344231212430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2024]
Abstract
BACKGROUND Toxic trace elements could enter human milk through mothers' food consumption, drinking water, air, or incidental soil ingestion, and are of concern to the nursing infant. RESEARCH AIM To determine the concentration of toxic trace elements (lead and arsenic) in Peruvian mothers' milk and their association with blood concentrations in their own infants 3-20 months old. METHOD This exploratory, cross-sectional study, carried out in Peru, included breastfeeding mother/child dyads (N = 40). Following standardized protocols, biospecimens of human milk and child's blood were collected. RESULTS Lead and arsenic concentrations in milk were above the method detection limits in 73% and 100% of samples with median concentrations of 0.26 µg/L (IQR = 0.10, 0.33 µg/L) and 0.73 µg/L (IQR = 0.63, 0.91 µg/L), respectively. Concentrations of lead and arsenic in blood were 2.05 µg/dL (SD = 1.35), and 1.43 µg/dl (geometric mean: SD = 1.39), respectively. Blood lead concentrations in 12.5% (n = 5) of the samples were above the U.S. Center for Disease Control and Prevention reference value (< 3.5 µg/dl), and over half of arsenic concentrations were above the acceptable levels of < 1.3 µg/dl (Mayo Clinic Interpretative Handbook). Our results showed that for every one-month increase in age, lead blood concentrations increased by 0.1 µg/dl (p = 0.023). Additionally, every 1 µg/L increase in the mother's milk arsenic was associated with a 1.40 µg/dl increase in the child's blood arsenic concentration. CONCLUSIONS Implementing effective interventions to decrease the toxic exposure of reproductive-aged women is needed in Peru and worldwide.
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Affiliation(s)
| | | | - Jason M. Unrine
- Environmental Toxicology, Department of Plant and Soil Sciences. Agriculture Science Center North, Kentucky Water Resources Research Institute, University of Kentucky, Lexington, KY, USA
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5
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Cerceo E, Saxer K, Grossman L, Shapley-Quinn K, Feldman-Winter L. The Climate Crisis and Breastfeeding: Opportunities for Resilience. J Hum Lact 2024; 40:33-50. [PMID: 38158719 DOI: 10.1177/08903344231216726] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
The climate crisis is an emerging global challenge that poses potential risks to breastfeeding practices and outcomes. There are multifaceted effects of climate change affecting the breastfeeding dyad across environmental, societal, and human health dimensions. Breastfeeding support in the face of climate change will require solutions at the structural level-healthcare, community, and workplace settings-and at the mother-infant dyad level. Breastfeeding can additionally be an adaptive response to crisis situations and can mitigate some of the environmental challenges associated with climate change. Despite the undeniable significance of climate change on breastfeeding (and vice versa), our perspective as experts in the field is that this topic has not been systematically addressed. Although we highlight some of the challenges, potential solutions, and co-benefits of breastfeeding in the context of climate change, there are numerous issues that could be further explored and necessitate additional preparedness planning.
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Affiliation(s)
- Elizabeth Cerceo
- Cooper University Healthcare, Cooper Medical School of Rowan University, Camden, NJ, USA
| | | | - Lauren Grossman
- General Internal Medicine and Emergency Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | | | - Lori Feldman-Winter
- Cooper University Healthcare, Cooper Medical School of Rowan University, Camden, NJ, USA
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Cosemans C, Bongaerts E, Vanbrabant K, Reimann B, Silva AI, Tommelein E, Poma G, Ameloot M, Nawrot TS, Plusquin M. Black carbon particles in human breast milk: assessing infant's exposure. Front Public Health 2024; 11:1333969. [PMID: 38298262 PMCID: PMC10828029 DOI: 10.3389/fpubh.2023.1333969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/26/2023] [Indexed: 02/02/2024] Open
Abstract
Background/Aim Human breast milk is the recommended source of nutrition for infants due to its complex composition and numerous benefits, including a decline in infection rates in childhood and a lower risk of obesity. Hence, it is crucial that environmental pollutants in human breast milk are minimized. Exposure to black carbon (BC) particles has adverse effects on health; therefore, this pilot study investigates the presence of these particles in human breast milk. Methods BC particles from ambient exposure were measured in eight human breast milk samples using a white light generation under femtosecond illumination. The carbonaceous nature of the particles was confirmed with BC fingerprinting. Ambient air pollution exposures (PM2.5, PM10, and NO2) were estimated using a spatial interpolation model based on the maternal residential address. Spearman rank correlation coefficients were obtained to assess the association between human breast milk's BC load and ambient air pollution exposure. Results BC particles were found in all human breast milk samples. BC loads in human breast milk were strongly and positively correlated with recent (i.e., 1 week) maternal residential NO2 (r = 0.79; p = 0.02) exposure and medium-term (i.e., 1 month) PM2.5 (r = 0.83; p = 0.02) and PM10 (r = 0.93; p = 0.002) exposure. Conclusion For the first time, we showed the presence of BC particles in human breast milk and found a robust association with ambient air pollution concentrations. Our findings present a pioneering insight into a novel pathway through which combustion-derived air pollution particles can permeate the delicate system of infants.
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Affiliation(s)
- Charlotte Cosemans
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Eva Bongaerts
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Kenneth Vanbrabant
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Brigitte Reimann
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Ana Inês Silva
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Eline Tommelein
- Department of Pharmaceutical and Pharmacological Sciences, Experimental Pharmacology, Vrije Universiteit Brussel, Jette, Belgium
| | - Giulia Poma
- Toxicological Centre, University of Antwerp, Wilrijk, Belgium
| | - Marcel Ameloot
- Biomedical Research Institute (BIOMED), Hasselt University, Diepenbeek, Belgium
| | - Tim S. Nawrot
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
- School of Public Health, Occupational and Environmental Medicine, Leuven University, Leuven, Belgium
| | - Michelle Plusquin
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
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7
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Martínez-Martínez M, Martínez-Martínez M, Soria-Guerra R, Gamiño-Gutiérrez S, Senés-Guerrero C, Santacruz A, Flores-Ramírez R, Salazar-Martínez A, Portales-Pérez D, Bach H, Martínez-Gutiérrez F. Influence of feeding practices in the composition and functionality of infant gut microbiota and its relationship with health. PLoS One 2024; 19:e0294494. [PMID: 38170702 PMCID: PMC10763948 DOI: 10.1371/journal.pone.0294494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/02/2023] [Indexed: 01/05/2024] Open
Abstract
Establishing the infant's gut microbiota has long-term implications on health and immunity. Breastfeeding is recognized as the best practice of infant nutrition in comparison with formula feeding. We evaluated the effects of the primary feeding practices by analyzing the infant growth and the potential association with gut diseases. A cross-sectional and observational study was designed. This study included 55 mothers with infants, who were divided according to their feeding practices in breastfeeding (BF), formula feeding (FF), and combined breast and formula feeding (CF). Anthropometric measurements of the participants were recorded. Additionally, non-invasive fecal samples from the infants were collected to analyze the microbiota by sequencing, immunoglobulin A (IgA) concentration (ELISA), and volatile organic compounds (gas chromatography with an electronic nose). Results showed that the microbiota diversity in the BF group was the highest compared to the other two groups. The IgA levels in the BF group were twice as high as those in the FF group. Moreover, the child´s growth in the BF group showed the best infant development when the data were compared at birth to the recollection time, as noted by the correlation with a decreased concentration of toxic volatile organic compounds. Interestingly, the CF group showed a significant difference in health status when the data were compared with the FF group. We conclude that early health practices influence children's growth, which is relevant to further research about how those infants' health evolved.
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Affiliation(s)
| | | | - Ruth Soria-Guerra
- Facultad de Ciencias Quimicas, Universidad Autonoma de San Luis Potosí, SLP, Mexico
| | | | | | - Arlette Santacruz
- Posgrado en Biotecnología, Centro de Biotecnología FEMSA, Tecnológico de Monterrey, Monterrey, Mexico
| | - Rogelio Flores-Ramírez
- Laboratorio de Salud Total, Centro de Investigación Aplicada en Ambiente y Salud -CIACYT, Universidad Autónoma de San Luis Potosí, SLP, Mexico
| | | | - Diana Portales-Pérez
- Instituto Mexicano del Seguro Social, Torreón, Mexico
- Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autonoma de San Luis Potosí, SLP, Mexico
| | - Horacio Bach
- Department of Medicine, Division of Infectious Diseases, University of British Columbia, Vancouver, BC, Canada
| | - Fidel Martínez-Gutiérrez
- Facultad de Ciencias Quimicas, Universidad Autonoma de San Luis Potosí, SLP, Mexico
- Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autonoma de San Luis Potosí, SLP, Mexico
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Souza MCO, Souza JMO, da Costa BRB, Gonzalez N, Rocha BA, Cruz JC, Guida Y, Souza VCO, Nadal M, Domingo JL, Barbosa F. Levels of organic pollutants and metals/metalloids in infant formula marketed in Brazil: Risks to early-life health. Food Res Int 2023; 174:113594. [PMID: 37986457 DOI: 10.1016/j.foodres.2023.113594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/10/2023] [Accepted: 10/13/2023] [Indexed: 11/22/2023]
Abstract
Infant formula intake is recommended to ensure comprehensive nutritional and caloric fulfillment when exclusive breastfeeding is not possible. However, similarly to breast milk, infant formulas may also contain pollutants capable of inducing endocrine-disrupting and neurotoxic effects. Thus, considering the sensitivity of their developing physiological systems and that infants have heightened susceptibility to environmental influences, this study was aimed at assessing the contents of essential elements, and inorganic and organic pollutants in infant formulas marketed in Brazil. Additionally, health risk assessments for selected contaminants were also performed. Measured contents of essential elements (Ca, Fe, Mg, Mn, Cu, Se, and Zn) were congruent with label information. Nevertheless, some toxic elements (Pb, Cd, As, Ni, and Al) were also detected. Notably, in the upper-bound scenario, Pb and Cd surpassed established threshold values when comparing the estimated daily intake (EDI) and tolerable daily intake (TDI - 3.57 and 0.36 μg/kg bw, respectively). Bisphenol P (BPP) and benzyl butyl phthalate (BBP) were frequently detected (84 % detection rate both) with elevated contents (BPP median = 4.28 ng/g and BBP median = 0.24 ng/g). Furthermore, a positive correlation (0.41) was observed between BPP and BBP, implying a potential co-occurrence within packaging materials. Methyl-paraben also correlated positively with BBP (0.57), showing a detection rate of 53 %. The cumulative PBDE contents ranged from 0.33 to 1.62 ng/g, with BDE-154 and BDE-47 the dominant congeners. When comparing EDI values with TDIs, all organic pollutants remained below the thresholds across all exposure scenarios. Moreover, non-carcinogenic risks were below the threshold (HQ > 1) when dividing the EDIs by the respective reference doses for chronic exposure. While the current findings may suggest that infant formula intake poses no immediate risk in terms of the evaluated chemicals, it remains imperative to conduct further research to safeguard the health of infants considering other chemicals, as well as their potential cumulative effects.
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Affiliation(s)
- Marília Cristina Oliveira Souza
- University of Sao Paulo, School of Pharmaceutical Sciences of Ribeirao Preto, Department of Clinical Analyses, Toxicology, and Food Sciences, Analytical and System Toxicology Laboratory, Avenida do Café s/n°, 14040-903, Ribeirao Preto, Sao Paulo, Brazil.
| | - Juliana Maria Oliveira Souza
- Department of Biochemistry, Biological Sciences Institute, University of Juiz de Fora, Campus Universitário, Rua José Lourenço Kelmer, s/n - São Pedro, Juiz de Fora, MG 36036-900, Brazil
| | - Bruno Ruiz Brandão da Costa
- University of Sao Paulo, School of Pharmaceutical Sciences of Ribeirao Preto, Department of Clinical Analyses, Toxicology, and Food Sciences, Forensic Toxicology Analysis Laboratory, Avenida dos Bandeirantes, 3900 - Monte Alegre, 14015-130, Ribeirao Preto, Sao Paulo, Brazil; University of Sao Paulo, Institute of Biosciences, Department of Botany, Laboratory of Phytochemistry, Rua do Matão, 277, 05508-090 Sao Paulo, Brazil
| | - Neus Gonzalez
- Universitat Rovira i Virgili, Laboratory of Toxicology and Environmental Health, School of Medicine, Sant Llorenç 21, 43201 Reus, Catalonia, Spain
| | - Bruno Alves Rocha
- University of Sao Paulo, School of Pharmaceutical Sciences of Ribeirao Preto, Department of Clinical Analyses, Toxicology, and Food Sciences, Analytical and System Toxicology Laboratory, Avenida do Café s/n°, 14040-903, Ribeirao Preto, Sao Paulo, Brazil
| | - Jonas Carneiro Cruz
- University of Sao Paulo, School of Pharmaceutical Sciences of Ribeirao Preto, Department of Clinical Analyses, Toxicology, and Food Sciences, Analytical and System Toxicology Laboratory, Avenida do Café s/n°, 14040-903, Ribeirao Preto, Sao Paulo, Brazil
| | - Yago Guida
- Institute of Biophysics Carlos Chagas Filho, Health Sciences Center, Federal University of Rio de Janeiro, 21941-902 Rio de Janeiro, RJ, Brazil
| | - Vanessa Cristina Oliveira Souza
- University of Sao Paulo, School of Pharmaceutical Sciences of Ribeirao Preto, Department of Clinical Analyses, Toxicology, and Food Sciences, Analytical and System Toxicology Laboratory, Avenida do Café s/n°, 14040-903, Ribeirao Preto, Sao Paulo, Brazil
| | - Martí Nadal
- Universitat Rovira i Virgili, Laboratory of Toxicology and Environmental Health, School of Medicine, Sant Llorenç 21, 43201 Reus, Catalonia, Spain
| | - José L Domingo
- Universitat Rovira i Virgili, Laboratory of Toxicology and Environmental Health, School of Medicine, Sant Llorenç 21, 43201 Reus, Catalonia, Spain
| | - Fernando Barbosa
- University of Sao Paulo, School of Pharmaceutical Sciences of Ribeirao Preto, Department of Clinical Analyses, Toxicology, and Food Sciences, Analytical and System Toxicology Laboratory, Avenida do Café s/n°, 14040-903, Ribeirao Preto, Sao Paulo, Brazil
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Wang Y, Sun Y, Gao M, Xin Y, Zhang G, Xu P, Ma D. Degradation of dimethyl phthalate by morphology controlled β-MnO 2 activated peroxymonosulfate: The overlooked roles of high-valent manganese species. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132199. [PMID: 37541123 DOI: 10.1016/j.jhazmat.2023.132199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/14/2023] [Accepted: 07/30/2023] [Indexed: 08/06/2023]
Abstract
Activated peroxymonosulfate (PMS) processes have emerged as an efficient advanced oxidation process to eliminate refractory organic pollutants in water. This study synthesized a novel spherical manganese oxide catalyst (0.4KBr-β-MnO2) via a simple KBr-guided approach to activate PMS for degrading dimethyl phthalate (DMP). The 0.4KBr-β-MnO2/PMS system enhanced DMP degradation under different water quality conditions, exhibiting an ultrahigh and stable catalytic activity, outperforming equivalent quantities of pristine β-MnO2 by 8.5 times. Mn(V) was the dominant reactive species that was revealed by the generation of methyl phenyl sulfone from methyl phenyl sulfoxide oxidation. The selectivity of Mn(V) was demonstrated by the negligible inhibitory effects of Inorganic anions. Theoretical calculations confirmed that Mn (V) was more prone to attack the CO bond of the side chain of DMP. This study revealed the indispensable roles of high-valent manganese species in DMP degradation by the 0.4KBr-β-MnO2/PMS system. The findings could provide insight into effective PMS activation by Mn-based catalysts to efficiently degrade pollutants in water via the high-valent manganese species.
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Affiliation(s)
- Yanhao Wang
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Resource and Environment, Qingdao Agricultural University, Qingdao 266109, China
| | - Yunlong Sun
- College of Resource and Environment, Qingdao Agricultural University, Qingdao 266109, China
| | - Mengchun Gao
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
| | - Yanjun Xin
- College of Resource and Environment, Qingdao Agricultural University, Qingdao 266109, China
| | - Guangshan Zhang
- College of Resource and Environment, Qingdao Agricultural University, Qingdao 266109, China
| | - Peng Xu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Dong Ma
- College of Resource and Environment, Qingdao Agricultural University, Qingdao 266109, China.
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